Mathematics Middle School

Please help on question 8

Please Help On Question 8

Answers

Answer 1
Proportion

1500/45 = 1000/x

Cross multiply

1500x = 45000

Eliminate

1500x/1500 = 45000/1500

x = 30

Answer is 1000 liter tank empty’s in 30 min
Answer 2

Answer:

it will take a 1000-tank 30 minutes to be emptied

Step-by-step explanation:

Related Questions

Please help giving brainliest

Answers

Answer: 85.6

Step-by-step explanation:

Wait how did you find the sales tax OwO

What is (9) 7 written in expanded form?
pls hurry

Answers

Answer:

90,007

Step-by-step explanation:

Answer:

9007

Step-by-step explanation:

the nine is in the hundreds place so here is the answer that you wanted to know

Explanation NEEDS to be included! No fake answers please! Brainliest for the best! Thank You!


Question: This pile of gold (photo below) is worth $50,000. Shrink the pile ( I already did it for you:) so that it is 18% of its height.

How much will the gold be worth? Explain your thinking.

Answers

Answer:

I beleive the answer is $9000

Step-by-step explanation: What is 18% of 50000?

Y is 18% of 50000

Equation: Y = P% * X

Solving our equation for Y

Y = P% * X

Y = 18% * 50000

Converting percent to decimal:

p = 18%/100 = 0.18

Y = 0.18 * 50000

Y = 9000

9000 is how much is taken off, just take 18% of 50000=9000
50000-9000=41,000.
After 18% is taken off it’s $41,000
It asked for how much the gold would be worth not how much is taken off.

Donna bought 5 bags of dog treats for $14.00. What is the cost per bag of dog treats?

Answers

Answer:

2.8

Step-by-step explanation:

14 divided by 5=2.8

Hope this helps you! <3

Answer:

$2.80

Step-by-step explanation:

You need to divide 14 by 5 to get how many dollars it costs. An easy way to do this do 14 * 2 / 10 = 2.80. So it costs $2.80 per bag of dog treats.

What is the probability that both spinners land on red or orange?

Answers

the probability is 1/3

Answer:

What is the probability that both spinners land on red or orange? the answer is 1/3

Step-by-step explanation:

Find the sum.
(-3.4k-7)+(3k+21)=
Thanks!

Answers

Answer:simply

Step-by-step explanation:

Simplifying

-3.4k + -7 + 3k + 21 = 0

Reorder the terms:

-7 + 21 + -3.4k + 3k = 0

Combine like terms: -7 + 21 = 14

14 + -3.4k + 3k = 0

Combine like terms: -3.4k + 3k = -0.4k

14 + -0.4k = 0

Solving

14 + -0.4k = 0

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '-14' to each side of the equation.

14 + -14 + -0.4k = 0 + -14

Combine like terms: 14 + -14 = 0

0 + -0.4k = 0 + -14

-0.4k = 0 + -14

Combine like terms: 0 + -14 = -14

-0.4k = -14

Divide each side by '-0.4'.

k = 35

Simplifying

k = 35

A grocery store sells avocados for $1.25 each. The graph shows the cost for different numbers of avocados.

Drag each list, statement, or equation below to show whether it describes the independent quantity, the dependent quantity, or neither.

Answers

I don’t know if this is right or not so, sorry if it’s wrong ;-;

1,2,3,4,5 = independent

c=1.25a = neither

$1.25, $2.50, $3.75, $5.00, $6.25 = dependent

Number of avocados = independent

Cost of avocados = dependent

If this is right then I’ll put the explanation in the comments, again sorry if it isn’t.

Find the percent of change for #1-5
1. Xbox one goes from $399 to $199.
2. A slice of pizza increases from $1.25 to $3.50
3. The price of a Halloween costume goes from$25 to $9.99
4. The price of a bagel goes from $0.75 to $1.10
5. 16 bagels to 0 bagels.

Answers

Answer:

1 50.1253%decrease

Step-by-step explanation:

[tex]\frac{399-199}{399}[/tex]

=[tex]\frac{100}{399}[/tex]

=0.501253

=50.1253

Which of the following equations have two complex solutions? Select all that apply.
(CHECK IMAGE ATTACHED)

Answers

Correct Answer: A and F!!

A- 3x^2+ 5x + 10=0

F- 2x^2 + 12 = -9x

Step-by-step explanation: Just did it and it’s right, hope that helped!! :)

The equations that have two complex solutions are 3x^2 + 5x + 10 = 0 and 2x^2 + 12 = -9x

For a quadratic equation to have a complex solution, hence the discriminant must be less than zero.

The discriminant is expressed as:

D = b^2 - 4ac

For the equation 10x^2 - 10 = 0

D = 0^2 - 4(10)(-10)

D = 400

Option B is false.

For the equation 3x^2 + 5x + 10 = 0

D = 5^2 - 4(3)(10)

D = 25 - 120

D = -95

Since D < 0, hence the equations 3x^2 + 5x + 10 = 0 have two complex solutions

For the equation 2x^2 + 12 = -9x

D = 9^2 - 4(2)(12)

D = 81 - 96

D = -15

Since D < 0, hence the equations 2x^2 + 12 = -9x have two complex solutions

Learn more on quadratic equations here: https://brainly.com/question/1214333

The more accurate the better, giving brainliest to best answer

Answers

The trapezoid has a height of 3in. a shorter base measuring 2.75 in and a longer base measuring 4.25 in. the total area is 10.5 in^2
10.5in^2.....................

Kira made$234 for 18 hours of work.
At the same rate, how many hours would she have to work to make $104?

Answers

8 hours. 234 divided by 18 = 13, she makes $13 an hour. So $104 divided by $13 an hour would be 8.

Answer:

5 hours and 30 seconds

Step-by-step explanation:

I need help on this. It's something about a pattern

Answers

3.5cm this helpfullllllllllll
Dhdhehebwbwbs XI be ci

Rewrite the equations using a negative exponent!! ill give brainliest, any random or incomplete answers will be reported!!

Answers

Answer:

11. [tex]x^{-2}[/tex]

12. [tex]m^{-3}[/tex]

13. [tex](x+2y)^{-4}[/tex]

14. [tex](x+3y)^{-2}[/tex]

15. [tex](x+y)^{-3}[/tex]

16. [tex](2x+3y)^{-6}[/tex]

17. [tex](-3m-9)^{-3}[/tex]

18. [tex]x^{-4}[/tex]

Step-by-step explanation:

In all of them you just subtract the bottom exponent from the top exponent.

Answer:

2348299392 xx

plz help i have till 4:00 to get it done

Answers

Answer:

it is the 4th one

Step-by-step explanation:

Find the probability of getting a head when you flip a coin, and then getting a vowel when you draw from a bag of letters with the full alphabet?

Answers

Answer:

UM I am not sure how you want this but a coin it is 50 50 or 1/2 and with the probability of getting a vowel is 5/26.

Step-by-step explanation:

Pls tell me if I am wrong I have no learned this yet if I am wrong I will edit it to be right.

5/12
Nor sure
Steep gy steo indo

please help me with this

Answers

Answer:

4

Step-by-step explanation:

sndhdjxnxbsnndnd but the. you eat the swlt

The answer is four you just have to divide to get your answer!

The model below represents
1
—
5
of the shaded area. Enter an equivalent fraction with twice as many equal parts.

Answers

The answer should be 2/10, sorry if I’m wrong
The question is not well written but if it means what I think it means it is 2/10

please help 7 points for who every answers queston

the perimeter of an equilateral triangle 6n-15. write an expretion the langth of each side.

Answers

Answer:

Step-by-step explanation:

Ok so in order to find perimeter you hhave to add the a+b+c in order to find the preminter of a triangle so just add them togather and you will find yor answer.

What is the reciprocal of 18/7?

a 8/17
b 17/8
c 7/18
d 18/1

Answers

The answer is c, 7/18
The correct answer is C 7/18

PLEASE HELP I'M BEING TIMES!! (UNIT RATE!!!!!)

Find the unit rate if 6 chocolate chip cookies have 426 calories. Show the answer in fraction and word form.

a.There are 71 calories per cookie.
b.There is 1 calorie per 71 cookies.
c.There are 61 calories per cookie.
d.There are 426 calories per 6 cookies.

Answers

Answer:

71 cals/ cookie

Step-by-step explanation:

426 divided by 6 equals 71. hope this helps. good luck

I think it’s A
426/6 = 71/1

Help me please! It would be nice to get help

Answers

Answer:

1/3 of a mile is 0.533

3/4 of a mile is 1.2 km

so how far did he travel combined from monday and tuesday is 1.733 (1.2+0.533) = 1.7333

the answer is 1 1/12 or 1.083 as a decimal

A rectangle has a length of x+5 cm and a width of x cm. The perimeter of the rectangle is 50 cm. What is the value of x?

Answers

Answer:x=10

Step-by-step explanation:

First let's create an equation:

2(x+5)+2x=50

2x+10+2x=50

4x+10=50

4x=40

x=10

Answer:

x = 10

Step-by-step explanation:

perimeter is the sum of all sides

2 sides = 'x+5' cm

2 sides = 'x' cm

2(x + 5) + 2x = 50

2x + 10 + 2x = 50

4x + 10 = 50

4x = 40

x = 10

Which points are plotted correctly on their accompanying number line? Check all that apply.
Point: Negative StartFraction 7 Over 8 EndFractionA number line going from negative 2 to positive 2 in increments of 1. There are 8 equal spaces between each number. A point is 1 mark to the right of negative 1.
Point: Negative one-halfA number line going from negative 2 to positive 2 in increments of 1. There are 8 equal spaces between each number. A point is half-way between 0 and 1.
Point : Negative one-fourthA number line going from negative 2 to positive 2 in increments of 1. There are 8 equal spaces between each number. A point is 2 spaces to the right of negative 1.
Point: Negative one-eighthA number line going from negative 2 to positive 2 in increments of 1. There are 8 equal spaces between each number. A point is 2 spaces to the right of negative 1.
Point: Negative 1 and three-fourths A number line going from negative 2 to positive 2 in increments of 1. There are 8 equal spaces between each number. A point is 2 spaces to the right of negative 1.
Point: Negative 1 and one-fourth A number line going from negative 2 to positive 2 in increments of 1. There are 8 equal spaces between each number. A mark is 2 spaces to the left of negative 1.

Answers

Answer:

A B D i think well i hope this helps

Answer:

Its A

Step-by-step explanation:

Triangle ABC has side lengths of 2 cm, 4 cm and 5 cm. Triangle DEF has side lengths of 6 cm, 11cm, and 20 cm. Can triangle ABC and triangle DEF be dilations of each other? Explain.

Answers

Answer:

No

Step-by-step explanation:

They can not be because they are not proportional.

Answer:

no

Step-by-step explanation:

What's the saddest thing in to world to you?

Answers

Answer:

tbh life itself

Step-by-step explanation:

everyday is just the same

Mah crush LOL hehehe

Which equation has infinitely many solutions?
A) 12 +4=6+ 10 – 2
B) 5+ 14 – 4= 23 + – 9
C) + 9 – 8=2+ 17 – 8
D) 4 – 2= 20

Answers

The correct answer is the letter B
Letter B............

While completing a DLA test virtually, Deidra answered 8 out 30 questions incorrectly. If the ratio remains constant, how many questions should Deidra answer correctly out of 45 questions?

Answers

Answer:

12

Step-by-step explanation:

I need help on these two! Please and thank you! (:

Answers

Answer:

Answers and methord in the pic

the first one is 2002.77 and the second should be 1608.5 just so u know it’s very easy it’s pie x radius squared times height so if u learn how to do that on a calculator you should be good in the future

You score an 88 on the first of two exams. Write and solve an equation to find the score x that you need on the second exam to have a mean score of 93.
An equation is: ___________=93
Needed score: _______

Answers

Answer:

X x 5= 93

Step-by-step explanation:

X x 5=93! .............

help i do need all of them sadly i only have 18 points plssssssssss help first person get brainlyes sorry for the spelling

Answers

Answer:

1. 3.1415 2. 3.141 3. 3.14 4. 3.14 5. 3.14

Step-by-step explanation:

hi

Answer:

1. 40 : 125.66

2. 20 : 62.82

3. 12 : 37.68

4. 4 : 12.56

5.  2 : 6.28

Step-by-step explanation:

I hope this helps :)

Can I have Brainilest plzzz ;-;

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